WO2006109227A3 - Energy distribution reconstruction in ct - Google Patents

Energy distribution reconstruction in ct Download PDF

Info

Publication number
WO2006109227A3
WO2006109227A3 PCT/IB2006/051068 IB2006051068W WO2006109227A3 WO 2006109227 A3 WO2006109227 A3 WO 2006109227A3 IB 2006051068 W IB2006051068 W IB 2006051068W WO 2006109227 A3 WO2006109227 A3 WO 2006109227A3
Authority
WO
WIPO (PCT)
Prior art keywords
energy distribution
reconstruction
distribution reconstruction
detector
redundancy
Prior art date
Application number
PCT/IB2006/051068
Other languages
French (fr)
Other versions
WO2006109227A2 (en
Inventor
Andy Ziegler
Original Assignee
Philips Intellectual Property
Koninkl Philips Electronics Nv
Andy Ziegler
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US11/911,212 priority Critical patent/US7894568B2/en
Application filed by Philips Intellectual Property, Koninkl Philips Electronics Nv, Andy Ziegler filed Critical Philips Intellectual Property
Priority to EP06727853A priority patent/EP1875276B1/en
Priority to JP2008506016A priority patent/JP2008536138A/en
Priority to AT06727853T priority patent/ATE479119T1/en
Priority to DE602006016424T priority patent/DE602006016424D1/en
Publication of WO2006109227A2 publication Critical patent/WO2006109227A2/en
Publication of WO2006109227A3 publication Critical patent/WO2006109227A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)

Abstract

The reconstruction of the energy distribution at a detector with a detector element that consists of many small pixels, which count the number of photons above certain thresholds, is performed with a Maximum Likelihood analysis, according to an aspect of the present invention. Thus, the reconstruction scheme may use the redundancy in the measurement and may treat the Poisson statistics accordingly.
PCT/IB2006/051068 2005-04-14 2006-04-07 Energy distribution reconstruction in ct WO2006109227A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US11/911,212 US7894568B2 (en) 2005-04-14 2006-04-04 Energy distribution reconstruction in CT
EP06727853A EP1875276B1 (en) 2005-04-14 2006-04-07 Energy distribution reconstruction in ct
JP2008506016A JP2008536138A (en) 2005-04-14 2006-04-07 Energy distribution reconstruction in CT
AT06727853T ATE479119T1 (en) 2005-04-14 2006-04-07 RECONSTRUCTION OF ENERGY DISTRIBUTION IN COMPUTER TOMOGRAPHY
DE602006016424T DE602006016424D1 (en) 2005-04-14 2006-04-07 RECONSTRUCTION OF ENERGY DISTRIBUTION IN COMPUTER TOMOGRAPHY

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05102971 2005-04-14
EP05102971.8 2005-04-14

Publications (2)

Publication Number Publication Date
WO2006109227A2 WO2006109227A2 (en) 2006-10-19
WO2006109227A3 true WO2006109227A3 (en) 2006-12-07

Family

ID=36910973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/051068 WO2006109227A2 (en) 2005-04-14 2006-04-07 Energy distribution reconstruction in ct

Country Status (6)

Country Link
US (1) US7894568B2 (en)
EP (1) EP1875276B1 (en)
JP (1) JP2008536138A (en)
AT (1) ATE479119T1 (en)
DE (1) DE602006016424D1 (en)
WO (1) WO2006109227A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2427858C2 (en) * 2006-07-10 2011-08-27 Конинклейке Филипс Электроникс, Н.В. Energy spectrum reconstruction
DE602007009700D1 (en) * 2006-08-15 2010-11-18 Koninkl Philips Electronics Nv MOTION COMPENSATION IN AN ENERGY SENSITIVE COMPUTER TOMOGRAPHY
US7693261B2 (en) * 2007-05-17 2010-04-06 Durham Scientific Crystals Limited Method and apparatus for inspection of materials
CN101681521B (en) * 2007-06-11 2012-06-27 皇家飞利浦电子股份有限公司 Imaging system and imaging method for imaging a region of interest
US8422636B2 (en) * 2010-10-12 2013-04-16 Ge Medical Systems Israel, Ltd. Photon counting and energy discriminating detector threshold calibration
CN105612416B (en) * 2013-07-25 2019-01-01 模拟技术公司 The generation of the diffractive features of article in object
CN105556340B (en) 2013-09-17 2019-06-18 皇家飞利浦有限公司 Refuse method via the scattering of energy calibration
CN105122085B (en) * 2013-10-09 2019-01-11 皇家飞利浦有限公司 The method and apparatus for being used to generate Energy-resolving X-ray image using the energy threshold of adjustment
US10359375B2 (en) * 2013-10-23 2019-07-23 Nanovision Technology (Beijing) Co., Ltd. Photon count-based radiation imaging system, method and device thereof
US11058369B2 (en) 2019-11-15 2021-07-13 GE Precision Healthcare LLC Systems and methods for coherent scatter imaging using a segmented photon-counting detector for computed tomography

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Also Published As

Publication number Publication date
US7894568B2 (en) 2011-02-22
DE602006016424D1 (en) 2010-10-07
JP2008536138A (en) 2008-09-04
WO2006109227A2 (en) 2006-10-19
US20090268862A1 (en) 2009-10-29
EP1875276A2 (en) 2008-01-09
ATE479119T1 (en) 2010-09-15
EP1875276B1 (en) 2010-08-25

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